粮食主产区农村劳动力转移对农业及粮食生产影响的调研分析——以江西为例

通过调查数据对粮食主产区农村劳动力转移对粮食生产影响进行实证分析。结果袁明。目前农村劳动力转移的规模和速度，从短期看不会对农业及粮食生产产生不利影响，影响农户从事农业及粮食生产主要因素有农产品价格、政府补贴、农业生产成本和病虫害。最后提出稳定粮食主产区粮食生产的政策建议。     

台湾地区农业科技研发体系及策略导向

介绍了台湾地区农业科技研发体系架构、组织特点及农业科技投入机制,分析了台湾地区农业科技研究立项的策略导向作用,提出借鉴台湾地区农业科技方面的经验,积极推动福建农业科技研发体系创新的若干思路。     

农民合作经济组织:农业企业化发展的助推器

农业企业化对推动农业现代化具有重大作用,要充分发挥形式多样的农民合作经济组织的作用,内外因相结合,完善农民合作经济组织,推动农业企业化进一步发展。     

有期权条件下的易逝品订购策略研究

在现实生活中,有大量的易逝品存在.由于易逝品价值递减的特性和需求的不确定性,使易逝品的订购较为困难并可能在期末由于未能出售导致零售商蒙受巨大的损失.作者将期权引入了易逝品订购之中,以最大化期望收益为目标,给出了易逝品最优订购数量.     

白字戏来源研究概述——兼谈剧种研究之方法

潮剧与白字戏历史上是同一个剧种,都叫做白字戏,鉴于白字戏来源问题的众说纷纭及诸多疑惑,在研究剧种的形成时一定要从构成剧种的基本要素——演出主体、戏剧产品及戏剧受众三方面综合审视,孤立地看待研究对象则难免片面。基于此,乡社祭祀赛会是白字戏生存发展的温床,而外来剧种是其由小戏成熟为地方剧种的催化剂,地方小戏与外来剧种都是形成白字戏的不可或缺的两大要素。     

海南中部山区农村综合经济实力与农业生态环境实证研究

本文对海南中部山区农村综合经济实力与农业生态环境加以实证研究分析。     

Identifying Dispersion Effects in Robust Design Experiments—Issues and Improvements

The two experimental methods most commonly used for reducing the effect of noise factors on a response of interest Y aim either to estimate a model of the variability (V(Y), or an associated function), that is transmitted by the noise factors, or to estimate a model of the ratio between the response (Y) and all the control and noise factors involved therein. Both methods aim to determine which control factor conditions minimise the noise factors' effect on the response of interest, and a series of analytical guidelines are established to reach this end. Product array designs allow robustness problems to be solved in both ways, but require a large number of experiments. Thus, practitioners tend to choose more economical designs that only allow them to model the surface response for Y. The general assumption is that both methods would lead to similar conclusions. In this article we present a case that utilises a design based on a product design and for which the conclusions yielded by the two analytical methods are quite different. This example casts doubt on the guidelines that experimental practice follows when using either of the two methods. Based on this example, we show the causes behind these discrepancies and we propose a number of guidelines to help researchers in the design and interpretation of robustness problems when using either of the two methods.     

农业院校学生人文素质教育综合模式的构建

加强农业院校学生的人文素质教育,是农业院校思想政治工作的一项重要内容。因此,对农业院校大学生的人文素质教育进行深入系统的研究和教改实验探索已势在必行。探究提升农业院校学生人文素质教育水平的对策,促进农业院校大学生人文素质的健康发展,是全面提升农业院校素质教育水平的一项基础工程。     

Competitive Bundling

This paper proposes a framework for studying competitive (pure) bundling in an oligopoly market. We find that under fairly general conditions, relative to separate sales, bundling raises market prices, benefits firms, and harms consumers when the number of firms is above a threshold (which can be small). This is in contrast to the findings in the duopoly case on which the existing literature often focuses. Our analysis also sheds new light on how consumer valuation dispersion affects price competition more generally.     

四苯硼钾在水-乙醇混合溶剂中的活度积及介质效应

在２９８．１５Ｋ下，对四苯硼钾在不同比例的水－乙醇混合溶剂中的活度积及从水到混合溶剂中的迁移自由能进行了研究，并对其在水－乙醇混合溶剂中的介质效应进行了讨论